CVE-2024-1902 in lunary
Summary
by MITRE • 04/10/2024
lunary-ai/lunary is vulnerable to a session reuse attack, allowing a removed user to change the organization name without proper authorization. The vulnerability stems from the lack of validation to check if a user is still part of an organization before allowing them to make changes. An attacker can exploit this by using an old authorization token to send a PATCH request, modifying the organization's name even after being removed from the organization. This issue is due to incorrect synchronization and affects the orgs.patch route.
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Analysis
by VulDB Data Team • 01/10/2025
The vulnerability described in CVE-2024-1902 represents a critical authorization flaw within the lunary-ai/lunary platform that enables session reuse attacks and unauthorized administrative actions. This security weakness specifically targets the organization management functionality, where the system fails to properly validate user permissions when processing PATCH requests to modify organization properties. The flaw allows malicious actors to maintain access to organizational resources beyond their legitimate authorization period, creating a persistent security risk that can be exploited even after users have been formally removed from an organization.
The technical implementation of this vulnerability stems from inadequate session validation mechanisms within the orgs.patch route handler. When a user attempts to modify organization details using an authorization token, the system does not perform proper membership verification to confirm that the user remains active within the organization before permitting the change. This lack of proper access control validation creates a race condition where expired or revoked credentials can still execute administrative operations. The vulnerability manifests as a session fixation issue that aligns with CWE-384, which specifically addresses the risks associated with session management and authorization validation failures.
The operational impact of this vulnerability extends beyond simple unauthorized modifications, creating potential risks for data integrity, confidentiality, and system availability. An attacker who has obtained a valid authorization token from a removed user can leverage this to alter organization names, potentially causing confusion, disrupting legitimate business operations, and creating opportunities for further attacks. The vulnerability affects the core organizational management functionality and could enable attackers to manipulate the system's organizational structure, potentially leading to privilege escalation or denial of service conditions. This issue directly violates the principle of least privilege and demonstrates poor access control implementation that can be categorized under ATT&CK technique T1078.
Mitigation strategies for CVE-2024-1902 should focus on implementing robust session validation mechanisms that verify user membership status before processing any administrative requests. Organizations should implement immediate session invalidation upon user removal, establish proper token expiration policies, and ensure that all authorization checks occur in real-time rather than relying on cached or stale authentication states. The system should enforce mandatory membership verification within the orgs.patch route handler, ensuring that any user attempting to modify organization properties must be actively validated as a current member. Additionally, implementing audit logging for all organization modification attempts will help detect unauthorized access patterns and provide forensic evidence for security investigations. The fix should also incorporate proper token rotation mechanisms and consider implementing multi-factor authentication for high-privilege operations to reduce the attack surface associated with credential reuse.